While there's a couple out there, wanted to try for myself,

Trained on SD1.5, so pretty decent compatibility with most realistic models

Setting the Lora to 1 should do the trick in most cases, that said if it gets a little too distorted (especially if your trying to do poses beyond the straight on) you can bring it down to as low as 0.7-0.8

Trigger Word Shirosama should be all you need, but words like blonde hair, blue eyes, can also help if some details get lost

Have Fun!